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Wire the finger-safe terminal block, Wire size and terminal screw torque – Rockwell Automation 1769-HSC Compact High Speed Counter Module User Manual

Page 18

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18 Compact I/O High-speed Counter Module

Publication 1769-IN030B-EN-P - October 2010

Wire the Finger-safe Terminal Block

When wiring the terminal block, keep the finger-safe cover in place.

1. Loosen the terminal screws to be wired.
2. Route the wire under the terminal pressure plate.

You can use the bare wire or a spade lug. The terminals accept a 6.35 mm (0.25 in.)
spade lug.

3. Tighten the terminal screw making sure the pressure plate secures the wire.

Recommended torque when tightening terminal screws is 0.68 N•m (6 lb•in).

Wire Size and Terminal Screw Torque

Each terminal accepts up to two wires with these restrictions.

TIP

The terminal screws are non-captive. Therefore, it’s possible to use a ring lug
(6.35 mm (0.25 in.) maximum outside diameter with 3.53 mm (0.139 in.)
minimum inside diameter) with the module.

TIP

If you need to remove the finger-safe cover, insert a screwdriver into one of the
square wiring holes and gently pry the cover off. If you wire the terminal block
with the finger-safe cover removed, you will not be able to put it back on the
terminal block because the wires will be in the way.

Wire Type

Wire Size

Terminal Screw
Torque

Retaining Screw
Torque

Solid

Cu-90 °C (194 °F) 0.32... 2.1 mm

2

(22...14 AWG)

0.68 N•m (6 lb•in)

0.46 N•m (4.1 lb•in)

Stranded

Cu-90 °C (194 °F) 0.32... 1.3 mm

2

(22...16 AWG)

0.68 N•m (6 lb•in)

0.46 N•m (4.1 lb•in)

Wiring the
Finger-safe
Terminal Block

Upper Retaining Screw

Lower Retaining Screw